Foods You Shouldn’t Reheat in a Microwave

No matter how tasty and healthy your freshly prepared meal is, it can lose its health benefits and even cause food poisoning if you reheat it in a microwave.

We introduce to you a list of foods that you should eat as soon as they’re cooked.

Celery is a great ingredient for soup but only until the moment a plate of it is in a microwave. Celery contains nitrates that turn into toxic nitrites and carcinogenic nitrosamines after reheating.
Try cooking celery cream soup — it’ll be tasty even when it’s cold.

Foods You Shouldn’t Reheat in a Microwave

Celery cream soup

We really doubt that you reheat your scrambled eggs or omelet, but we’d like to warn you anyway: after reheating, eggs become toxic.
It’s better to add them to your sandwich or salad. Then you won’t have to reheat them or throw them away.

Foods You Shouldn’t Reheat in a Microwave


Many people who follow a healthy diet love spinach because it contains lots of vitamins and minerals. But, just like celery, spinach is full of nitrates that become nitrites and nitrosamines after reheating.
Add spinach to smoothies, sandwiches, or salads and get the maximum benefits without any harm.

Mushrooms are very tricky: despite the high content of protein, vitamins, and amino acids, they are not digested well most of the time. And if you reheat your leftover risotto, the problem will get even worse: the protein composition of mushrooms changes, and this causes stomachache and stomach bloating.
If you don’t want to get rid of your leftover mushroom dish, put it in the fridge and eat it the next day after reheating your meal to no more than 158°F (70°C). But the best use for your leftover mushrooms is making a pasta sauce with them or adding them to a salad.

Quite unexpectedly, potatoes turned out to be on the blacklist too. Reheated potatoes lose their taste and health benefits and can even become a cause of botulism if they’re stored in foil at room temperature.
It’s better to eat mashed potato and French fries immediately. If you have leftover boiled potatoes, you should add them to your salad.

Foods You Shouldn’t Reheat in a Microwave

Mashed potatoes

When reheating chicken dishes, the protein composition changes, and this can lead to problems with digestion.
Therefore, it’s better to add your leftover chicken to a salad or sandwich.

Foods You Shouldn’t Reheat in a Microwave


Beetroot still has its health benefits even in a soup. But it’s not recommended to reheat it as beetroot is also full of nitrates.
Fresh beetroot is the healthiest. You can use it in a smoothie or salad.

Rice is rich in vitamins, minerals, and amino acids, but it also contains spores of bacteria that survive even after cooking. If rice is left at room temperature after it’s prepared, bacteria will multiply, and this can cause food poisoning. Reheating doesn’t solve the problem, so it’s better to eat rice immediately or refrigerate it within an hour of cooking and keep it there until the next day.